{
  "id": "python-free-threading-parallelism",
  "name": "python-free-threading-parallelism",
  "version": "0.1.0",
  "type": "skill",
  "provider": "python",
  "harnesses": [
    "codex",
    "claude-code",
    "cursor",
    "gemini",
    "kiro",
    "other"
  ],
  "summary": "Static review of Python free-threaded (no-GIL) adoption: invalidated GIL thread-safety assumptions, shared-state races, C-extension compatibility, and synchronization needs — producing an evidence-based adopt / pilot / defer verdict. Reads source, build config, and extension manifests only; never builds or runs the free-threaded interpreter.",
  "source_type": "original",
  "official_docs": [
    "https://docs.python.org/3/howto/free-threading-python.html",
    "https://docs.python.org/3/howto/free-threading-extensions.html",
    "https://peps.python.org/pep-0703/",
    "https://docs.python.org/3/whatsnew/3.13.html"
  ],
  "security_notes": "Static review only — reads application source, build configuration, and native-extension manifests to assess free-threaded (no-GIL) readiness; never builds, installs, or runs the free-threaded interpreter or an extension against it. A claim about an actual race, speedup, or extension crash under free-threading is flagged as needing confirmation on a real free-threaded build. Never requests credentials or customer data.",
  "last_verified": "2026-07-26",
  "path": "skills/python/python-free-threading-parallelism",
  "author": "github: VincentChuWaiChow"
}